From the 1970s to the present,the accepted value of H has almost doubled,so:
A) the age of the universe is twice as old as we originally believed.
B) the age of the Universe is half what we believed.
C) the Copernican principle is not valid beyond our solar system.
D) the ages of the oldest globular clusters are invalid.
E) the critical density must also be halved.

Question

Quizplus · Accepted Answer

The value of Hubble Constant (H) is used to estimate the age of the Universe through the Hubble Law. According to the law, the age of the Universe is inversely proportional to the value of H. As the value of H has almost doubled from the 1970s to the present, the estimated age of the Universe must be halved to match the new value of H. Therefore, the correct answer is B - the age of the Universe is half what we believed.

From the 1970s to the Present,the Accepted Value of H